one of the leading arguments is that steel cannot melt at the temperatures achieved in the fires in the towers. apparently steel just plods along at full strength all the way up to its melting point the BAM! liquid love. all the so-called "experts" that they show on the 9/11 conspiracy films seem to have an additional "ex" in their title, i.e., "ex-explosives expert." fired for incompetence i suppose.
taks
I actually met a person once who believed in 9/11 conspiracy. He did indeed use that steel melting point argument and I just stood there my mouth slightly open, because I never thought I would meet someone so stupid, so freakishly stupid.
I think the best argument against almost any conspiracy theory is their own magnitude, the sheer amount of people who are part of it. Honestly, "Two people can hold a secret if one of them is dead".